<extend name="public@base"/>
<block name="seo">
    <php>$new_category=empty($category_i18n)?$category:$category_i18n;</php>
    <title>{$new_category.name} {$new_category.seo_title} {$site_info.site_name|default=''}</title>
    <meta name="keywords" content="{$new_category.seo_keywords},{$site_info.site_seo_keywords|default=''}"/>
    <meta name="description" content="{$new_category.seo_description},{$site_info.site_seo_description|default=''}">
</block>